Unusual cause of hip pain in a patient with relapsing Henoch-Schonlein nephritis

Hip pain, a common symptom, is rarely caused by pyomyositis.  Here we  present  the  case  of  a  58-year-old  male  patient  with  relapsing  Henoch-Schonlein  nephritis  and  diabetes, being  treated  with immunosuppressive  agents who developed pain around the hip joint.  Diagnosis was suspected after an MRI scan  and  confirmed  when Staphylococcus  aureus was  isolated  from  aspirated purulent  material.   Prompt  symptomatic  improvement  was  noticed  when  the immunosuppressive  agents  were  stopped  and  the  patient  was  started  on appropriate  antibiotics.   Early  diagnosis  and  treatment  is  needed  for  prompt symptom resolution and prevention of serious complications.